Product overview: 9260 Mini Fixed-Point Cell Furnace
Cost-Effective, Precise, and Easy Fixed-Point Realization
Affordable Fixed-Point Calibration—Uncompromised Accuracy
The Fluke 9260 Mini Fixed-Point Cell Furnace delivers high-quality ITS-90 fixed-point calibration at a fraction of the cost of large-scale furnaces. Designed for indium, tin, zinc, and aluminum cells, the 9260 covers all primary fixed points from 156.5985 °C to 660.323 °C, using less than half the space and investment of a traditional system.
Key Benefits and Features
- Lower Total Cost – The 9260 furnace costs less than half of a large furnace, and the smaller-volume, 99.9999% pure metal cells are also much more affordable.
- Complete ITS-90 Coverage – Use with indium, tin, zinc, and aluminum mini cells to realize all major ITS-90 fixed points required for laboratory calibration.
- Simple, Hands-Off Operation – Place the fixed-point cell in the furnace at the end of the day. The next morning, initiate the built-in software routine for your specific cell type. Within an hour, the cell is stable and ready for precise measurements—all day long.
- Flexible Software Control – Built-in software lets you choose between melting-point or freezing-point curves for each metal. While ITS-90 recommends freezing points, melting points are easier to realize, and the difference in uncertainty (less than 2 mK) is negligible for most labs.
- Proven Performance – For most applications, Fluke Calibration’s mini cells at their melting points provide results indistinguishable from traditional cells at their freezing points.
- High-Precision Comparison Calibrations – Optional comparison blocks are available for the 9260, offering a variety of pre-drilled or custom wells for high-precision calibrations at high temperatures. Each block provides a well depth of 229 mm (9 in).
Key Features
- Mini fixed point furnace.
- Available indium, tin, zinc, and aluminum mini cells.
- Quartz and Metal fixed point cell options.
- Half the cost of full size fixed point solution.
Specifications: 9260 Mini Fixed-Point Cell Furnace
| General Specifications |
| Temperature Range |
50 °C to 680 °C |
| Ambient Operating Range |
5 °C to 45 °C |
| Stability |
±0.03 °C to 300 °C
±0.05 °C above 300 °C |
| Vertical Gradient |
Top and bottom zones adjustable by offset |
| Plateau Duration |
6–10 hours typical |
| Resolution |
0.01 ° |
| Display Scale |
°C or °F, switchable |
| Immersion Depth |
229 mm (9 in) |
| Stabilization Time |
15 minutes nominal |
| Preheat Wells |
2 |
| Fault Protection |
Sensor burnout and short protection, over-temperature thermal cutout |
| Display Accuracy |
±0.2 °C to 300 °C
±0.3 °C to 450 °C
±0.5 °C to 680 °C |
| Comparison Block |
Two multi-hole blocks, blanks, and custom blocks available |
| Well-to-Well Gradient (in comparison block) |
±0.02 °C |
| Heating Time |
1.25 hrs. from 25 °C to 680 °C |
| Cooling Time |
10.5 hrs. from 680 °C to 100 °C |
| Comm. |
RS-232 included |
| Power Requirements |
115 VAC (±10 %), 60 Hz, 11 A, or
230 VAC (±10 %), 50 Hz, 6 A, specify, 1200 W |
| Exterior Dimensions (HxWxD) |
489 x 222 x 260 mm (19.25 x 8.75 x 10.25 in) |
| Weight |
20.5 kg (45 lb.) with block |
Accessories: 9260 Mini Fixed-Point Cell Furnace
Calibration inserts (3)
- 3160-1 | Comparison Insert, Blank
- 3160-2 | Comparison Insert, 7 holes at 6.35 mm (1/4 in)
- 3160-3 | Comparison Insert, 2 holes at 3.2 mm (1/8 in), 2 at 4.76 mm (3/16 in), 2 at 6.35 mm (1/4 in), 2 at 9 mm (9/32 in), and 2 at 9.5 mm (3/8 in)
Accessories: 9260 Mini Fixed-Point Cell Furnace
Calibration inserts (3)
- 3160-1 | Comparison Insert, Blank
- 3160-2 | Comparison Insert, 7 holes at 6.35 mm (1/4 in)
- 3160-3 | Comparison Insert, 2 holes at 3.2 mm (1/8 in), 2 at 4.76 mm (3/16 in), 2 at 6.35 mm (1/4 in), 2 at 9 mm (9/32 in), and 2 at 9.5 mm (3/8 in)